Flashcards in Deck 11 Deck (11)
An organism that can make its own food.
An organism that obtains energy by feeding on other organisms
organism that feeds on plant and animal remains and other dead matter
An organism that breaks down wastes and dead organisms
A diagram that shows the amount of energy that moves from one feeding level to another in a food web
the circulation of substances through living organisms from or to the environment.
rapid algal growth caused by an excess of nitrates (NO3)- and phosphates (PO4)3- in water
anything that changes the physical structure of the habitat (fire, waves, tree-fall, plowing)
the act of using resources faster than they can be restored or replaced
The destruction of habitats that usually results from human activities